Local Cartesian coordinates. More...
#include <GeographicLib/LocalCartesian.hpp>
Public Member Functions | |
| LocalCartesian (double lat0, double lon0, double h0=0, const Geocentric &earth=Geocentric::WGS84) throw () | |
| LocalCartesian (const Geocentric &earth=Geocentric::WGS84) throw () | |
| void | Reset (double lat0, double lon0, double h0=0) throw () |
| void | Forward (double lat, double lon, double h, double &x, double &y, double &z) const throw () |
| void | Reverse (double x, double y, double z, double &lat, double &lon, double &h) const throw () |
| double | LatitudeOrigin () const throw () |
| double | LongitudeOrigin () const throw () |
| double | HeightOrigin () const throw () |
Local Cartesian coordinates.
Convert between geodetic coordinates latitude = lat, longitude = lon, height = h (measured vertically from the surface of the ellipsoid) to local cartesian coordinates (x, y, z). The origin of local cartesian coordinate system is at lat = lat0, lon = lon0, h = h0. The z axis is normal to the ellipsoid; the y axis points due north. The plane z = - h0 is tangent to the ellipsoid.
The conversions all take place via geocentric coordinates using a GeographicLib::GeoCentric object (by default GeographicLib::Geocentric::WGS84).
| GeographicLib::LocalCartesian::LocalCartesian | ( | double | lat0, |
| double | lon0, | ||
| double | h0 = 0, |
||
| const Geocentric & | earth = Geocentric::WGS84 |
||
| ) | throw () [inline] |
Constructor setting the origin to latitude = lat0, longitude = lon0 (degrees), height = h0 (meters). The optional earth argument (default Geocentric::WGS84) specifies the Geocentric object to use for the transformation.
Definition at line 47 of file LocalCartesian.hpp.
References Reset().
| GeographicLib::LocalCartesian::LocalCartesian | ( | const Geocentric & | earth = Geocentric::WGS84 | ) | throw () [inline] |
Default constructor sets the origin to lat0 = 0, lon0 = 0, h0 = 0. The optional earth argument (default Geocentric::WGS84) specifies the Geocentric object to use for the transformation.
Definition at line 57 of file LocalCartesian.hpp.
References Reset().
| void GeographicLib::LocalCartesian::Reset | ( | double | lat0, |
| double | lon0, | ||
| double | h0 = 0 |
||
| ) | throw () |
Change the origin to latitude = lat0, longitude = lon0 (degrees), height = h0 (meters).
Definition at line 23 of file LocalCartesian.cpp.
References GeographicLib::Constants::degree().
Referenced by LocalCartesian().
| void GeographicLib::LocalCartesian::Forward | ( | double | lat, |
| double | lon, | ||
| double | h, | ||
| double & | x, | ||
| double & | y, | ||
| double & | z | ||
| ) | const throw () |
Convert from geodetic coordinates lat, lon (degrees), h (meters) to local cartesian coordinates x, y, z (meters). lat should be in the range [-90, 90]; lon and lon0 should be in the range [-180, 360].
Definition at line 43 of file LocalCartesian.cpp.
Referenced by main().
| void GeographicLib::LocalCartesian::Reverse | ( | double | x, |
| double | y, | ||
| double | z, | ||
| double & | lat, | ||
| double & | lon, | ||
| double & | h | ||
| ) | const throw () |
Convert from local cartesian x, y, z (meters) to geodetic coordinates lat, lon (degrees), h (meters). The value of lon returned is in the range [-180, 180).
Definition at line 53 of file LocalCartesian.cpp.
Referenced by main().
| double GeographicLib::LocalCartesian::LatitudeOrigin | ( | ) | const throw () [inline] |
Return the latitude of the origin (degrees).
Definition at line 87 of file LocalCartesian.hpp.
| double GeographicLib::LocalCartesian::LongitudeOrigin | ( | ) | const throw () [inline] |
Return the longitude of the origin (degrees).
Definition at line 92 of file LocalCartesian.hpp.
| double GeographicLib::LocalCartesian::HeightOrigin | ( | ) | const throw () [inline] |
Return the height of the origin (meters).
Definition at line 97 of file LocalCartesian.hpp.
1.7.5